EP2339427A2 - Procédé et appareil de génération de vibrations dans un terminal portable - Google Patents

Procédé et appareil de génération de vibrations dans un terminal portable Download PDF

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Publication number
EP2339427A2
EP2339427A2 EP20100196830 EP10196830A EP2339427A2 EP 2339427 A2 EP2339427 A2 EP 2339427A2 EP 20100196830 EP20100196830 EP 20100196830 EP 10196830 A EP10196830 A EP 10196830A EP 2339427 A2 EP2339427 A2 EP 2339427A2
Authority
EP
European Patent Office
Prior art keywords
vibration
touch
portable terminal
vibrators
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP20100196830
Other languages
German (de)
English (en)
Other versions
EP2339427A3 (fr
Inventor
Eun-Hwa Lee
Yu-Dong Bae
Jeong-Seok Lee
In-Kuk Yun
Seong-Min Seo
Po-Ra Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP2339427A2 publication Critical patent/EP2339427A2/fr
Publication of EP2339427A3 publication Critical patent/EP2339427A3/fr
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/163—Indexing scheme relating to constructional details of the computer
    • G06F2200/1637—Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/01—Indexing scheme relating to G06F3/01
    • G06F2203/013—Force feedback applied to a game
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/01—Indexing scheme relating to G06F3/01
    • G06F2203/014—Force feedback applied to GUI

Definitions

  • the present invention relates generally to the control of vibrations generated in a portable terminal, and more particularly, to a method and an apparatus for generating vibrations that respond to a manipulation of a portable terminal by a user.
  • Portable terminals include, for example, mobile communication terminals such as a mobile phone, personal digital assistants (PDAs), portable digital multimedia broadcasting (DMB) terminals, MPEG layer 3 (MP3) players, portable multimedia players (PMPs), and portable gaming devices such as a Playstation Portable (PSP). While such portable terminals had been developed to provide their natural functions, they are gradually being developed to provide multiple functions. That is, a single portable terminal that can provide complex functions such as a mobile communication function, a game function, and a multimedia reproducing function.
  • PDAs personal digital assistants
  • DMB portable digital multimedia broadcasting
  • MP3 MPEG layer 3
  • PMP portable multimedia players
  • PGP Playstation Portable
  • Such a portable terminal includes a vibrator and drives the vibrator according to control of the operation of the terminal to generate vibrations for informing a user of information. For example, vibrations are often used to inform a user of the reception of a call or a message or are generated in response to a specific event of a game. When a portable terminal is used in public places, vibrations are often used instead of sounds to prevent noise from being generated.
  • a game pad or a game controller as well as a portable terminal includes a vibrator to appropriately generate vibrations during a game.
  • Vibrations may be applied to a touch screen of a portable terminal to realize a feeling of pushing a button having a vibration feedback.
  • a portable terminal including a touch screen uses vibrations to allow a user to check an input in order to prevent an input error through the touch screen. For example, a portable terminal generates a short vibration signal to allow a user to check a touch.
  • a motor cannot stop vibrations immediately due to its characteristics and thus leaves residual vibrations.
  • a potable terminal includes an AC linear motor in order to improve them, the phase of a drive voltage is changed to generate a signal.
  • a portable terminal includes a DC motor, a reverse voltage is applied to it.
  • a portable terminal uses changes in the strength, duration, and pattern of a voltage applied to a motor to generate various haptic effects to enhance the sensations in various applications.
  • an AC linear motor generates large vibrations in a specific resonance frequency, it has a limitation in creating haptic effects because its vibrations are limited to a fixed frequency.
  • a DC motor can change its drive frequency in response to an applied voltage, the strength of vibrations becomes weak, causing a limitation in creating haptic effects in the case of a low frequency.
  • the present invention has been made to solve the above-mentioned problems occurring in the prior art, and the present invention provides a method and an apparatus for generating vibrations that create various haptic effects.
  • the present invention also provides a method and an apparatus for generating vibrations that increase satisfaction in the use of a portable terminal.
  • the present invention further provides a method and an apparatus for generating vibrations that reflect an interactive input of a user.
  • a vibration generating apparatus for a portable terminal including a plurality of vibrators mounted to the portable terminal to be spaced apart from each other by a predetermined interval and having different resonance frequencies; and a control unit configured to determine vibration generation patterns of the plurality of vibrators according to a vibration event and to drive the plurality of vibrators according to the vibration generation patterns.
  • a portable terminal includes a plurality of vibrators to generate vibrations in various patterns.
  • the embodiment of the present invention includes two vibrators as an example.
  • the resonance frequencies of the vibrators of the portable terminal are preferably different, and the vibrators are mounted to the portable terminal so as to be spaced apart from each other to generate vibrations in a single direction.
  • a portable terminal is a small-sized terminal device that can be carried with one hand and to which an input can be made with it being held by one hand in motion, and includes, for example, a mobile communication terminal such as a mobile phone, a personal digital assistant (PDA), a portable digital multimedia broadcasting (DMB) terminal, an MPEG layer 3 (MP3) player, a portable multimedia player (PMP), and a portable gaming device such as a Playstation Portable (PSP).
  • PDA personal digital assistant
  • DMB portable digital multimedia broadcasting
  • MP3 MPEG layer 3
  • PMP portable multimedia player
  • PGP Playstation Portable
  • FIG. 1 illustrates an example of a mobile communication terminal as a portable terminal which includes motors as vibrators. While FIG. 1 illustrates a mobile communication terminal, the configuration of the present invention may be applied to other types of portable terminals.
  • the control unit 120 controls the overall operation of the mobile communication terminal 100.
  • the touch panel 162 is mounted to overlap the screen 161 in order to allow a user to perform a touch input while checking the data displayed on the screen 161.
  • the touch panel 162 includes a touch detector and a signal converter.
  • the touch detector detects a touch control instruction such as a touch, a drag, and a drop from a physical change, for example, of a resistance, an electrostatic capacity, etc.
  • the signal converter coverts a physical change to a touch signal and outputs the touch signal to the control unit 120.
  • the mobile communication unit 130 performs operations and signal processing required for mobile communications under the control of the control unit 120.
  • the mobile communication unit 130 transmits and receives wireless signals to and from a mobile communication base station through an antenna.
  • the mobile communication unit 130 modulates a transmission signal input from the control unit 120 through a baseband processor to transmit the wireless signal through the antenna, and demodulates the wireless signal received through the antenna to provide the demodulated signal to the control unit 120 through the baseband processor.
  • the baseband processor processes a baseband signal transmitted and received to and from the control unit 120.
  • the memory unit 110 stores programs for processing and control of the control unit 120, reference data, and various renewable stored data which are provided to a working memory of the control unit 120.
  • the memory unit 110 stores various vibration control patterns according to an embodiment of the present invention.
  • the vibration control patterns are drive control data for the vibrators which correspond to vibration generation patterns.
  • the vibration generation pattern is one of the vibrations which are to be generated in the mobile communication terminal 100 and may be manifested by the strength of the vibrations and a combination of the location, interval, and maintenance period of the vibrations. Accordingly, a vibration control pattern may include a vibration strength, a motor drive period, and a drive interval.
  • the memory unit 110 stores vibration edit menu program data that allows a user to edit a vibration generation pattern and to designate a vibration event corresponding the vibration generation pattern.
  • the control unit 120 Upon request for a vibration edit menu by a user, the control unit 120 displays the vibration edit menu, and thus displays a user interface which allows a user to select the strength, location, interval, and maintenance period of vibrations and a vibration event.
  • the control unit 120 stores a vibration control pattern corresponding to a vibration generation pattern of a user and a corresponding vibration event.
  • a first motor 140 and a second motor 150 are driven under the control of the control unit 120, and are spaced apart from each other in the mobile communication terminal 100.
  • the resonance frequencies of the first motor 140 and the second motor 150 are preferably different to generate vibrations in various patterns.
  • Vibrators capable of generating vibrations in a single direction may be used as the first motor 140 and the second motor 150 to generate vibrations in more various patterns according to the embodiment of the present invention.
  • the first motor 140 and the second motor 150 may be linear motors.
  • the vibration characteristics of a linear motor are simple since it generates vibrations along one axis. Due to such characteristics of a linear motor, if a linear motor that vibrates in a direction perpendicular to a front surface of the portable terminal, i.e. the z-axis direction is mounted to the portable terminal to be driven, vibration forces are distributed in a diagonal direction in the portable terminal.
  • a plurality of vibrators are preferably located such that when the first motor 140 and the second motor 150 which are linear motors are mounted to the mobile communication terminal, the directions of the vibrations generated by the motors are preferably in the same direction, i.e. one of left/right and one of upward/downward directions with respect to the front surface of the mobile communication terminal 100 or the x-axis direction and the y-axis direction, respectively.
  • FIG. 2A illustrates a case in which the first motor 140 and the second motor 150 are mounted such that vibrations are generated in the left/right direction with respect to the front surface 170 of the mobile communication terminal 100, i.e. the x-axis direction according to the embodiment of the present invention.
  • the first motor 140 and the second motor 150 are diagonally located on surfaces of the mobile communication terminal 100 parallel to each other and are spaced a predetermined distance apart from each other.
  • the vibration directions of the first and second motors 140 and 150 are in the same direction, i.e. the x-axis direction.
  • FIGS. 2B and 2C illustrate the distribution of vibration displacements by the motors 140 and 150 mounted as in FIG. 2A .
  • FIG. 2B illustrates vibration displacements when only the first motor 140 is driven and
  • FIG. 2C illustrates vibration displacements when only the second motor 150 is driven.
  • the vibration displacement section 1 illustrates a small displacement and the vibration displacement section 9 illustrates a large displacement. That is, it illustrates that a displacement become large toward a vibration displacement section 9.
  • This method is not limited to linear motors, but can be applied to all vibrators capable of generating vibrations in a single direction. That is, if the direction of vibrations of a vibrator is parallel to the front surface 170, the vibrator will be operated in the same way as in the above example.
  • FIGS. 3A and 3B illustrate vibration force distribution data when the first motor 140 and the second motor 150 are mounted to simulate upward and downward directions.
  • the first motor 140 and the second motor 150 are mounted on the upper right side and lower left side of the front surface 170 and the direction of the vibration is the right/left direction, i.e. the x-axis direction with respect to the front surface 170.
  • FIG. 3A is a view illustrating vibration force distribution data (Voltage 6 Vpp, unit m/s2) when only the first motor 140 is driven in three cycles at 175 Hz
  • FIG. 3B is a view illustrating vibration force distribution data when only the second motor 150 is driven in 5 cycles at 320 Hz.
  • the values in the figures represent total accelerations at each point of the mobile communication terminal 100, and each total acceleration is a root of the sum of the squares of the 3-axis acceleration values.
  • Three waveform patterns corresponding to the total accelerations represent vibration patterns sequentially in the y-axis, z-axis, and x-axis when a sine wave is driven.
  • the total accelerations are proportional to vibration forces and it can be seen from FIGS. 3A and 3B that as the vibrations are generated in the right/left direction, i.e.
  • the difference between the vibrations at the upper and lower ends remains approximately 3 dB constantly due to the vibrations at the upper (or lower) end, and if vibrators are disposed at the upper and lower ends, directionality and movement can be realized.
  • the vibrator is disposed in this way, vibrations become strong on one side and weak on the other side, a user can feel the right/left or upward/downward directionality when the vibrations are generated. Then, when a plurality of vibrators are driven at different times, the right/left or upward/downward movement can also be realized.
  • FIG. 4 is a view illustrating a control process when a vibration event is generated according to the embodiment of the present invention.
  • control unit 120 detects the generation of a vibration event in step 201, a vibration generation pattern corresponding to the detected vibration event and the currently set application is detected in step 203. Vibrations are generated by driving the motors 140 and 150 according to a vibration control pattern in step 205.
  • FIGS. 5 to 11 Examples of generating vibrations are illustrated in FIGS. 5 to 11 .
  • FIGS. 6A and 6B illustrate vibration generation patterns corresponding to a call receiving vibration event.
  • FIG. 6A illustrates a vibration generation pattern of simultaneously driving the first motor 140 and the second motor 150 at different frequencies. For example, if the first motor 140 is driven at a frequency f1 and the second motor 150 is driven at a frequency f2, dynamic vibrations corresponding to synthesized waves f1+f2 or f1-f2 are generated, making it possible to effectively inform of the reception of a call.
  • the sixth vibration generation pattern 402 is such that after the first motor 140 is driven to generate a predetermined magnitude of vibration force for a predetermined time period when a screen starts to be converted by a flicking touch, the vibration force is gradually reduced according to the screen converting speed, and after the second motor 150 is driven to generate a vibration force which gradually increases from the minimum value, the strongest vibration force is generated for a predetermined time period at a screen conversion ending point, in order to make a user feel like a vibration is moved from the left to the right.
  • the screen converting time may be fixed, but since it can be dynamically changed in correspondence to the length and speed of a flicking touch locus of a user, it may be reflected on the fifth vibration generation pattern 401 and the sixth vibration generation pattern 402 to adjust the entire vibration generation time period.
  • FIGS. 9A and 9B illustrate an example of providing a feedback vibration when a game application is executed to move an object displayed on a screen according to a touch input of a user. If a user selects an object through the touch panel 162 and moves an input means downward with the touch state being maintained as in FIG. 9A , the control unit 120 moves the object along a touch locus to display it. If the user releases the touch, the object is continuously displayed as if the object moves upward and downward. Then, the movement width of the object is gradually reduced as time lapses, and the object is stopped after a predetermined time period.
  • a synchronized vibration were generated at a location of the object which is repeatedly moved upward and downward in a specific direction and the displacement of which is reduced to be stopped on a screen, a user could experience an enhanced feeling of reality during a game.
  • the vibration generation pattern according to the location change of an object may be dynamically changed. Since the movement display pattern of an object is determined in proportion to the time period of a touch input of a user for an object and a touch movement distance and the display location of an object according to the determined movement display pattern is determined, a vibration generation point corresponding to it may be determined and thus a vibration generation pattern is determined.
  • FIG. 11 illustrates an example of generating vibrations according to the frequencies of audio signals output during reproduction of a video. That is, a vibration corresponding to the audio signals output as the video is reproduced by defining a vibration generated in correspondence to the frequencies of the audio signals.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • User Interface Of Digital Computer (AREA)
  • Telephone Function (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Position Input By Displaying (AREA)
EP20100196830 2009-12-24 2010-12-23 Procédé et appareil de génération de vibrations dans un terminal portable Ceased EP2339427A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090131263A KR20110074333A (ko) 2009-12-24 2009-12-24 휴대 단말의 진동 발생 방법 및 장치

Publications (2)

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EP2339427A2 true EP2339427A2 (fr) 2011-06-29
EP2339427A3 EP2339427A3 (fr) 2011-12-28

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EP20100196830 Ceased EP2339427A3 (fr) 2009-12-24 2010-12-23 Procédé et appareil de génération de vibrations dans un terminal portable

Country Status (4)

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US (1) US20110157052A1 (fr)
EP (1) EP2339427A3 (fr)
KR (1) KR20110074333A (fr)
CN (2) CN102111496B (fr)

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US20110157052A1 (en) 2011-06-30
CN105242755A (zh) 2016-01-13

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